v3.23.1
Reinsurance - Narrative (Details)
12 Months Ended
Jul. 01, 2020
USD ($)
Dec. 31, 2022
USD ($)
Agreement
Dec. 31, 2021
USD ($)
Effects of Reinsurance [Line Items]      
Reinsurance assets due from reinsurers (as a percent)   5.00%  
Loss on amendment   $ 0 $ 0
Reinsurance recoverables   $ 29,400,000,000  
Number of affiliated reinsurance agreement | Agreement   1  
Number of bilateral letter of credit | Agreement   1  
Fortitude      
Effects of Reinsurance [Line Items]      
Loss on amendment $ 91,000,000    
Corebridge      
Effects of Reinsurance [Line Items]      
Reserves ceded   $ 14,000,000,000  
Letter of credit   175,000,000  
Legacy Life And Retirement Run Off Lines Segment Member      
Effects of Reinsurance [Line Items]      
Reinsurance assets   26,800,000,000 34,100,000,000
Legacy Life And Retirement Run Off Lines Segment Member | Corebridge      
Effects of Reinsurance [Line Items]      
Reinsurance assets   26,600,000,000 $ 35,100,000,000
Life And Universal Segment | Corebridge      
Effects of Reinsurance [Line Items]      
Reserves ceded   5,000,000,000  
Reserves recaptured   $ 16,000,000,000